./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a81d76a671fec08918102c7898e8919d02b265d05707efa1508363dab4714d44 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:35:29,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:35:29,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-13 16:35:29,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:35:29,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:35:29,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:35:29,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:35:29,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:35:29,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:35:29,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:35:29,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:35:29,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:35:29,519 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:35:29,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:35:29,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:35:29,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:35:29,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:35:29,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:35:29,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:35:29,520 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:35:29,521 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:35:29,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:35:29,521 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:35:29,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:35:29,521 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:35:29,521 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:35:29,521 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:35:29,521 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:35:29,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:35:29,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:35:29,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:35:29,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:35:29,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:35:29,522 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:35:29,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:35:29,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a81d76a671fec08918102c7898e8919d02b265d05707efa1508363dab4714d44 [2024-11-13 16:35:29,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:35:29,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:35:29,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:35:29,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:35:29,859 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:35:29,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i Unable to find full path for "g++" [2024-11-13 16:35:31,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:35:32,073 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:35:32,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2024-11-13 16:35:32,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/data/aa8d201e3/e040d02470a548ca934532aa81209733/FLAG2d0a580d0 [2024-11-13 16:35:32,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/data/aa8d201e3/e040d02470a548ca934532aa81209733 [2024-11-13 16:35:32,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:35:32,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:35:32,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:35:32,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:35:32,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:35:32,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d29bf16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32, skipping insertion in model container [2024-11-13 16:35:32,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:35:32,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:35:32,751 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:35:32,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:35:32,826 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:35:32,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32 WrapperNode [2024-11-13 16:35:32,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:35:32,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:35:32,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:35:32,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:35:32,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,867 INFO L138 Inliner]: procedures = 126, calls = 38, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 110 [2024-11-13 16:35:32,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:35:32,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:35:32,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:35:32,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:35:32,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:35:32,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:35:32,922 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:35:32,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:35:32,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:35:32" (1/1) ... [2024-11-13 16:35:32,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:35:32,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:35:32,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:35:32,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:35:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:35:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-11-13 16:35:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-11-13 16:35:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:35:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:35:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:35:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 16:35:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 16:35:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:35:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 16:35:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:35:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:35:33,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:35:33,141 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:35:33,146 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:35:33,409 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-13 16:35:33,409 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:35:33,540 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:35:33,541 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 16:35:33,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:35:33 BoogieIcfgContainer [2024-11-13 16:35:33,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:35:33,542 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:35:33,542 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:35:33,554 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:35:33,554 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:35:33" (1/1) ... [2024-11-13 16:35:33,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:35:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:33,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-11-13 16:35:33,634 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-13 16:35:33,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:35:33,639 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:33,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:35:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 25 transitions. [2024-11-13 16:35:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-13 16:35:34,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 16:35:34,263 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:34,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:35:34,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:34,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 29 transitions. [2024-11-13 16:35:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2024-11-13 16:35:34,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 16:35:34,518 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:34,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:35:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 30 transitions. [2024-11-13 16:35:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-13 16:35:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 16:35:34,790 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:34,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:35:35,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:35,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 34 transitions. [2024-11-13 16:35:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-13 16:35:35,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 16:35:35,162 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:35,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:35:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 35 transitions. [2024-11-13 16:35:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-13 16:35:35,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 16:35:35,450 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:35,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:35:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:36,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 39 transitions. [2024-11-13 16:35:36,008 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-13 16:35:36,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 16:35:36,009 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:36,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 16:35:36,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:36,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 24 states and 30 transitions. [2024-11-13 16:35:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-13 16:35:36,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 16:35:36,288 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:36,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:35:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 34 transitions. [2024-11-13 16:35:36,897 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-13 16:35:36,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 16:35:36,897 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:36,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:35:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 24 states and 28 transitions. [2024-11-13 16:35:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-13 16:35:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 16:35:37,271 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:35:37,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:35:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:35:39,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:35:39,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 21 states and 24 transitions. [2024-11-13 16:35:39,414 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-13 16:35:39,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 16:35:39,415 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2024-11-13 16:35:39,424 INFO L729 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2024-11-13 16:35:39,600 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 618) the Hoare annotation is: true [2024-11-13 16:35:39,600 INFO L77 FloydHoareUtils]: At program point L589(line 589) the Hoare annotation is: true [2024-11-13 16:35:39,600 INFO L77 FloydHoareUtils]: At program point L589-1(line 589) the Hoare annotation is: true [2024-11-13 16:35:39,601 INFO L77 FloydHoareUtils]: At program point L618-2(line 618) the Hoare annotation is: (not (and (< |ULTIMATE.start_main_#t~post15#1| 1) (not (= 0 |ULTIMATE.start_main_#t~post15#1|)))) [2024-11-13 16:35:39,601 INFO L77 FloydHoareUtils]: At program point L618-3(line 618) the Hoare annotation is: (not (and (< |ULTIMATE.start_main_#t~post15#1| 1) (not (= 0 |ULTIMATE.start_main_#t~post15#1|)))) [2024-11-13 16:35:39,601 INFO L77 FloydHoareUtils]: At program point L618-4(lines 618 620) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_~i~0#1| 0)) (< |ULTIMATE.start_main_~i~0#1| 1))) [2024-11-13 16:35:39,602 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 595) the Hoare annotation is: true [2024-11-13 16:35:39,602 INFO L77 FloydHoareUtils]: At program point L586(line 586) the Hoare annotation is: (and (= 2 |ULTIMATE.start_dll_circular_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| 2)) [2024-11-13 16:35:39,602 INFO L77 FloydHoareUtils]: At program point L586-1(line 586) the Hoare annotation is: true [2024-11-13 16:35:39,603 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 595) the Hoare annotation is: true [2024-11-13 16:35:39,604 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 16:35:39,604 INFO L77 FloydHoareUtils]: At program point L595(line 595) the Hoare annotation is: true [2024-11-13 16:35:39,604 INFO L77 FloydHoareUtils]: At program point L595-1(line 595) the Hoare annotation is: true [2024-11-13 16:35:39,604 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 16:35:39,604 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 618) no Hoare annotation was computed. [2024-11-13 16:35:39,604 INFO L77 FloydHoareUtils]: At program point L588-2(lines 588 596) the Hoare annotation is: true [2024-11-13 16:35:39,604 INFO L77 FloydHoareUtils]: At program point L577(lines 577 579) the Hoare annotation is: true [2024-11-13 16:35:39,604 INFO L77 FloydHoareUtils]: At program point L573(line 573) the Hoare annotation is: true [2024-11-13 16:35:39,604 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 575 584) the Hoare annotation is: true [2024-11-13 16:35:39,605 INFO L77 FloydHoareUtils]: At program point node_createEXIT(lines 575 584) the Hoare annotation is: true [2024-11-13 16:35:39,632 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-13 16:35:39,633 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-13 16:35:39,633 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-13 16:35:39,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:35:39 ImpRootNode [2024-11-13 16:35:39,634 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:35:39,635 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:35:39,635 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:35:39,636 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:35:39,636 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:35:33" (3/4) ... [2024-11-13 16:35:39,639 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:35:39,643 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2024-11-13 16:35:39,648 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-13 16:35:39,648 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 16:35:39,648 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 16:35:39,649 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 16:35:39,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 16:35:39,746 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 16:35:39,746 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:35:39,747 INFO L158 Benchmark]: Toolchain (without parser) took 7417.49ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 91.5MB in the beginning and 63.8MB in the end (delta: 27.6MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2024-11-13 16:35:39,748 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:35:39,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.76ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 73.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:35:39,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.01ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 72.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:35:39,749 INFO L158 Benchmark]: Boogie Preprocessor took 49.23ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 70.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:35:39,749 INFO L158 Benchmark]: RCFGBuilder took 619.44ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 48.3MB in the end (delta: 22.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:35:39,750 INFO L158 Benchmark]: CodeCheck took 6092.28ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 48.3MB in the beginning and 68.2MB in the end (delta: -19.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-11-13 16:35:39,750 INFO L158 Benchmark]: Witness Printer took 111.16ms. Allocated memory is still 142.6MB. Free memory was 68.2MB in the beginning and 63.8MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:35:39,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 362 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 184 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 587 IncrementalHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 184 mSolverCounterUnsat, 170 mSDtfsCounter, 587 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1205 GetRequests, 1127 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1703 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 48/64 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 618]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 618]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: !((i != 0) && (i < 1)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.76ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 73.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.01ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 72.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.23ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 70.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 619.44ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 48.3MB in the end (delta: 22.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 6092.28ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 48.3MB in the beginning and 68.2MB in the end (delta: -19.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 111.16ms. Allocated memory is still 142.6MB. Free memory was 68.2MB in the beginning and 63.8MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID RESULT: Ultimate proved your program to be correct! [2024-11-13 16:35:39,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecdfa23-3cdd-4f3c-8154-c8e3fb1317bc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE